<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th><input type="checkbox" v-model="isAll" /> <span>全选</span></th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <Shop
          @BtnDel="btndel"
          v-for="(item, index) in goodList"
          :key="index"
          :obj="item"
        />
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5">
            <total :arr='goodList' />
          </td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import Shop from './components/shopping.vue'
import total from './components/total.vue'
export default {
  data () {
    return {
      goodList: [
        {
          name: '诸葛亮',
          price: 1000,
          num: 1,
          checked: false
        },
        {
          name: '蔡文姬',
          price: 1500,
          num: 1,
          checked: false
        },
        {
          name: '妲己',
          price: 2000,
          num: 1,
          checked: false
        },
        {
          name: '鲁班',
          price: 2200,
          num: 1,
          checked: false
        }
      ]
    }
  },
  components: { Shop, total },
  computed: {
    isAll: {
      get () {
        return this.goodList.every((item) => item.checked === true)
      },
      set (val) {
        this.goodList.forEach((item) => {
          item.checked = val
        })
      }
    }
  },
  methods: {
    btndel (val) {
      const index = this.goodList.findIndex((item) => item.name === val)
      this.goodList.splice(index, 1)
    }
  }
}
</script>

<style></style>
